My evidence is that he got great value in the trade with Buffalo. You evidence that there were ever 29 teams interested and offering a better return before he was injured is what, exactly? "Common sense economics"? You think the NHL is a purely rational market?
The main point is that the trade (which was a very good one) is being compared to imaginary ones based on presumed market conditions, with literally no evidence that a better trade was available earlier. Adding the suggestion that he was "lucky" to get a good trade return when he did is fascinating.
Well, if your position is that Kane+Bogo+Kasdorf for Myers, Stafford, STL 2015 1st, Armia and Lemieux was the maximum return Chevy could've received for those players at any point from 2011 to pre-incident-2015, then that's fine. I will speculate no more.
But is your position really "Chevy was a very shrewd GM and man of action who got rid of Evander Kane freeing the team and city from him before his antics really got out of hand"?
I'm a bit surprised that you're willing to overlook the "process" here and just concentrate on results...the more I think about the Kane situation, the more concerned I become about Chevy. He let the Kane situation fester for 3 years and was forced by the players to finally take action. He got lucky, and this organization dodged a bullet.